.content-wrap{
    margin-top: 10px;
    background-color: #eee;
}
.content{
    width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
}
.left{
    width: 800px;
    border: #999 solid 3px;
}
.right{
    width: 300px;
    height: 500px;
    background-color: rgb(45, 45, 45);
}